Brégnier-Cordon bridge over the Rhône: reopening announced for 30 October

If you are driving between the southern Bugey and the Isère side of the Rhône, the short way via Brégnier-Cordon should be available again. The bridge, known locally as the pont des Trois-Départements, links the D992 in the Ain to the D592 in Aoste, in the Isère.

Seven months closed

Badly deteriorated, mainly through water seeping into the structure, the bridge had been closed to everyone since April 2026: cars, pedestrians and cyclists. The diversion went via the Évieu bridge and the D1075 on the Isère side, adding a fair amount of time to journeys between the southern Bugey and the Aoste and Pont-de-Beauvoisin area.

The works

On 9 October 2026, the Isère Department announced that the bridge would reopen on 30 October, weather permitting. Repairs covered the supports, piers, deck, waterproofing, expansion joints, pavements and road surface. The cost, including surveys, came to €1.7 million, shared equally between the Ain and Isère departments. Sensors will now monitor how the structure behaves over time.

What changes

Heavy goods vehicles of up to 44 tonnes are allowed on the bridge again.

One caveat: as of 9 November 2026, we had not found any official publication confirming that the bridge actually reopened on the planned date. If in doubt, check current traffic conditions with the Department before setting off. Our getting around page gathers practical transport information for the area, and the full announcement is on the Isère Department website (in French).